Automatic recommendation
OK - siRNA is specific for both sense and antisense (guide) strands
5 hits were found for CAAUUCGAAGGGAGGUAGG (0 guide strand hits and 5 sense strand hits.)
Hits to Sense strand
| Accession | Gene | Start | End | Details of mismatches | Spec. Score | Mismatches | Contiguous | Jackson style specificity | Hits similar gene | HSP Score | HSP % Identity | HSP length | Gene Length | ||||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | |||||||||||||
| NM_019014 | POLR1B | 641 | 659 | u | a | U | A | C | C | U | C | C | C | U | U | u | G | A | A | U | U | u | 71 | 4 | 10 | false | <90% | 5968 | |||
| NM_001014449 | DDX19B | 1585 | 1603 | C | C | U | A | C | C | U | C | a | C | U | U | C | a | A | A | U | U | a | 15 | 3 | 8 | c | false | <90% | 1728 | ||
| NM_001014451 | DDX19B | 1595 | 1613 | C | C | U | A | C | C | U | C | a | C | U | U | C | a | A | A | U | U | a | 15 | 3 | 8 | c | false | <90% | 1738 | ||
| NM_007242 | DDX19B | 1688 | 1706 | C | C | U | A | C | C | U | C | a | C | U | U | C | a | A | A | U | U | a | 15 | 3 | 8 | c | false | <90% | 1831 | ||
| NM_018332 | DDX19A | 1627 | 1645 | C | C | U | A | C | C | U | C | a | C | U | U | C | a | A | A | U | U | a | 15 | 3 | 8 | c | false | <90% | 2918 | ||
3 prime UTR Seed matches
Hits to same gene : 0
Hits to other genes : 184
View matched accessions
3 prime seed match details
Immunostimulatory motif search results
UGUGU - Judge et al. Sequence-dependent stimulation of the mammalian innate immune response by synthetic siRNA. Nat Biotechnol. 2005 Apr;23(4):457-62. (PMID: 15778705)
No Immunostimulatory motif found (UGUGU).
GUCCUUCAA - Hornung et al. Sequence-specific potent induction of IFN-alpha by short interfering RNA in plasmacytoid dendritic cells through TLR7. Nat Med. 2005 Mar;11(3):263-70. Epub 2005 Feb 20. (PMID: 15723075)
No Immunostimulatory motif found (GUCCUUCAA).
Settings used for search
Scores were calculated using scoring scheme SS1
Using AVG scoring mode.
Hit scores
| Parameter | Spec. Score cut-off | Colour | Comment |
| Hit to same gene | Colour | Hits to the same accession or genes with 100 percent identity (i.e. likely transcript variants). It is advisable to always check the genes hit. | |
| High scoring hit | ≥80 | Colour | Hits are very likely to cause an off-target effect |
| Medium scoring hit | <80¸≥40 | Colour | Hits with a small chance of causing an off target effect. |
| Low scoring hit | Colour | Hits very unlikely to cause an off-target effect |
The mismatches are colour coded based on the weighting of that position.
| Cut-off | Colour |
| Match | Colour |
| Wobble base pairs (G-U) | Colour |
| Critical bases (none) | Colour |
| 0.6 bits | Colour |
| 0.4 bits | Colour |
| 0.2 bits | Colour |
SpecificityServer is designed to help you identify potential non-specific matches to your siRNA. It incorporates the latest information about non-specific matches (sequence-specific only).
Designed by: Alistair Chalk, Quan Du, Zicai Liang and Erik L.L. Sonnhammer